Opening and closing device for the seat or the seat lid of a toilet bowl



FIG. 1 is a front elevational view of an opening and closing device forthe seat or the seat lid of a toilet bowl, illustrating my new designtherefor, the rear elevational view being an identical mirror image ofFIG. 1;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a perspective view thereof.

The ornamental design for an opening and closing device for the seat orthe seat lid of a toilet bowl, as shown and described.